8.G.A.1b

Angles are taken to angles of the same measure.

 
19 Lesson(s)
   

Introduction to congruence and similarity through transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Which one of these is not like the other? Investigate how Sesame Street is connected to congruence and similarity.

 
Favorites (29)
 
Resources (16)
8 1 image
   

Translations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Set the foundation for students' knowledge of and fluency with translations.

 
Favorites (14)
 
Resources (17)
 
Reflections (1)
8 2 image translations 1 resized
   

Rotations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Set the foundation for students' understanding of rotations about the origin - link it to tether ball!

 
Favorites (11)
 
Resources (15)
8 7 image tether ball
   

Dilations 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Biggie or Smalls? Set the foundation for students' understanding of dilations, and use Geogebra to illustrate.

 
Favorites (16)
 
Resources (15)
8 11 image dilations 1 resized
   

Mixed Review - Transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Deepen students' understanding by putting together the last 8 days of learning into one day. Incredibly important to consolidate their understanding before moving on!

 
Favorites (5)
 
Resources (19)
 
Reflections (2)
8 9 image transformations review resized
   

Rotations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Get kids fluent in rotations by providing them with a lot of independent practice with rotations!

 
Favorites (5)
 
Resources (15)
8 8 image rotations 2 resized
   

Reflections 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Use geomirrors to set the foundation for students' understanding of reflections, only across the axes.

 
Favorites (8)
 
Resources (15)
8 4 image geomirrors
   

Reflections 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Can you reflect objects without the geomirrors? Push kids to apply the idea of equal distance from the line of reflection.

 
Favorites (6)
 
Resources (15)
8 5 image reflections 2 resized
   

Dilations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Biggie or Smalls? Continue setting the foundation for students' understanding of dilations.

 
Favorites (9)
 
Resources (15)
8 12 image dilations 2 resized
   

Mixed Review - Transformations

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Consolidate students' knowledge of and fluency with transformations by reviewing the first 16 days of the unit. Incredibly important to ensure student retention!

 
Favorites (4)
 
Resources (15)
8 17 image mixed transformations review resized
   

Translations 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Continue building students' facility with translations with a second day, tackling translations in different ways.

 
Favorites (8)
 
Resources (16)
 
Reflections (1)
8 3 image translations 2 resized
   

Series of Transformations that Lead to Congruence

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Unlock students' creativity by pushing them to use different series of multiple transformations to create two congruent figures.

 
Favorites (4)
 
Resources (21)
 
Reflections (1)
series of transformations lesson image
   

Similarity 1

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

What are the important things that happen when a figure is dilated?

 
Favorites (6)
 
Resources (17)
8 13 image similarity 1 resized
   

Reflections 3

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

Push students' understanding of reflections by reflecting across diagonal lines. Tricky!!!! (and some cool patterns emerge).

 
Favorites (6)
 
Resources (14)
8 6 image reflections 3
   

Similarity 2

8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
8th Grade Math » Unit: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
Jeff Li MTP
New York, NY
Environment: Urban
 
Big Idea:

BIG QUESTION OF THE DAY: How can I tell if two figures are similar?

 
Favorites (2)
 
Resources (15)
8 14 image resized
Common Core Math
 
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